A 2.40-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic...
A 2.40-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.480. Determine the kinetic frictional force that acts on the box for each of the following cases.
(a) The elevator is stationary.
N
(b) The elevator is accelerating upward with an acceleration whose
magnitude is 1.20 m/s2.
N
(c) The elevator is accelerating downward with an acceleration
whose magnitude is 1.20 m/s2.
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A 2.40-kg box is sliding across the horizontal floor of an
elevator. The coefficient of kinetic...
A 3.10-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic...
A 3.10-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.460. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator is stationary. N (b) The elevator is accelerating upward with an acceleration whose magnitude is 2.30 m/s2. N (c) The elevator is accelerating downward with an acceleration whose magnitude is 2.30 m/s2. N
A 2.00-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic...
A 2.00-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.440. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator is stationary. N (b) The elevator is accelerating upward with an acceleration whose magnitude is 2.00 m/s2. N (c) The elevator is accelerating downward with an acceleration whose magnitude is 2.00 m/s2. N
I push a 16.5-kg box across a floor, which has a kinetic frictional force of Ff...
I push a 16.5-kg box across a floor, which has a kinetic frictional force of Ff = 27.5 N. If my push of FA = 32 N gives it an acceleration of 0.35 m/s2, what is the coefficient of kinetic friction?
a) A box in an upward moving elevator is being pushed across the floor with a...
a) A box in an upward moving elevator is being pushed across the floor with a constant force. 1) Friction is doing positive work on the box. True or False 2) The pushing force is doing negative work on the box. True or False 3) The normal force on the box is doing positive work on the box. True or False 4) If there is net positive work on the box parallel to the floor, the kinetic energy of the...
Question 12 (1 point) A 50.0-kg box is resting on a horizontal floor. A force of...
Question 12 (1 point) A 50.0-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 20.7° below the horizontal is applied to the box. The coefficient of kinetic friction between the box and the surface is 0.300. What is the acceleration of the box? OA) 3.54 m/s2 OB) 5.14 m/s2 OC) 2.84 m/s2 OD) 1.21 m/s2 E) 1.77 m/s2 Question 13 (1 point) A 50.0-kg box is resting on a horizontal floor....
A 13.61 N force acts on a mass accelerating it across a frictionless floor at 4.27...
A 13.61 N force acts on a mass accelerating it across a frictionless floor at 4.27 m/s2. The same force applied to the same mass will cause what acceleration across of floor whose coefficient of friction is 0.22?
2. (a) A 6.0 kg box is sliding across a floor when it hits a horizontal...
2. (a) A 6.0 kg box is sliding across a floor when it hits a horizontal spring of spring constant 95.0 N/m. If the box is shoved 1.00 m from the end of the spring with an initial speed of 4.0 m/s and friction can be neglected, how much will the spring be compressed?
3,4? 3. A 100-kg person stwnds on a scale fastened to the floor of an elevator....
3,4?
3. A 100-kg person stwnds on a scale fastened to the floor of an elevator. The scale reads in newtons. What does the scale read when (a) the elevator is moving with upward acceleration a (b) the elevator is moving with downward acceieration a' and (c) the elevator is moving upward at 20 m/s while its speed is decreasing at a rate of 8 m/s?? 4. A beer stein of mass 0.45 kg slides horizontally along the bar with...
a 20.0 kg box is pushed across a rough level floor by means of a A...
a 20.0 kg box is pushed across a rough level floor by means of
a
A 20.0 kg box is pushed across a rough level floor by mEANS of a 5ooN FORCE IP) applied at an angle of 370 below the horizONTAL AS SHOWN. tv P=500N g=9,80 M/A² (a) Draus a free-body ---... 2oka I THTRTTITOT - diagram of the box using the point-mass model. (6) Find the magnitude of the normal contact force (n) that acts on the box....
6. A person wants to push a 110-kg box across the floor. The coefficient of friction...
6. A person wants to push a 110-kg box across the floor. The coefficient of friction between the box and the floor is 0.61. a. What is the normal force experienced by the box at rest(N)? b. If the person pushes against the box with 500N of force but at an angle of 20 relative to the horizontal, what is the normal force experienced by the box in (N)? c. With no applied force, what is the frictional force of...
Question 12 (1 point) A 50.0-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 20.7° below the horizontal is applied to the box. The coefficient of kinetic friction between the box and the surface is 0.300. What is the acceleration of the box? OA) 3.54 m/s2 OB) 5.14 m/s2 OC) 2.84 m/s2 OD) 1.21 m/s2 E) 1.77 m/s2 Question 13 (1 point) A 50.0-kg box is resting on a horizontal floor....
2. (a) A 6.0 kg box is sliding across a floor when it hits a horizontal spring of spring constant 95.0 N/m. If the box is shoved 1.00 m from the end of the spring with an initial speed of 4.0 m/s and friction can be neglected, how much will the spring be compressed?
3,4?
3. A 100-kg person stwnds on a scale fastened to the floor of an elevator. The scale reads in newtons. What does the scale read when (a) the elevator is moving with upward acceleration a (b) the elevator is moving with downward acceieration a' and (c) the elevator is moving upward at 20 m/s while its speed is decreasing at a rate of 8 m/s?? 4. A beer stein of mass 0.45 kg slides horizontally along the bar with...
a 20.0 kg box is pushed across a rough level floor by means of
a
A 20.0 kg box is pushed across a rough level floor by mEANS of a 5ooN FORCE IP) applied at an angle of 370 below the horizONTAL AS SHOWN. tv P=500N g=9,80 M/A² (a) Draus a free-body ---... 2oka I THTRTTITOT - diagram of the box using the point-mass model. (6) Find the magnitude of the normal contact force (n) that acts on the box....
6. A person wants to push a 110-kg box across the floor. The coefficient of friction between the box and the floor is 0.61. a. What is the normal force experienced by the box at rest(N)? b. If the person pushes against the box with 500N of force but at an angle of 20 relative to the horizontal, what is the normal force experienced by the box in (N)? c. With no applied force, what is the frictional force of...
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